Debugger is not stopping in web ide xsa

Hi ,

I am using sap web ide for developing middleware serice in xsjs .when i try to attach debugger it is showing debugger attached successfully . . when i try to debug it it not stopping it in that line . . it is executing all the program.

could any one can suggest is there any setting i need to check.

my package.json versions

"@sap/xsjs": "3.4.2",

"@sap/xsenv": "1.2.9"

Thanks in advance